./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:56:00,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:56:00,510 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:56:00,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:56:00,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:56:00,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:56:00,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:56:00,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:56:00,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:56:00,569 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:56:00,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:56:00,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:56:00,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:56:00,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:56:00,571 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:56:00,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:56:00,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:56:00,572 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:56:00,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:56:00,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:56:00,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:56:00,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:56:00,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:56:00,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:56:00,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:56:00,574 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:56:00,575 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:56:00,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:00,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:00,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:56:00,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:56:00,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:56:00,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:56:00,577 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:56:00,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:56:00,577 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-28 04:56:00,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:56:00,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:56:00,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:56:00,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:56:00,971 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:56:00,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c [2024-11-28 04:56:04,569 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/data/69174233a/d9387e5ccb7247b188054385ff98e8b0/FLAG8327ffc22 [2024-11-28 04:56:04,844 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:56:04,845 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c [2024-11-28 04:56:04,854 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/data/69174233a/d9387e5ccb7247b188054385ff98e8b0/FLAG8327ffc22 [2024-11-28 04:56:05,139 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/data/69174233a/d9387e5ccb7247b188054385ff98e8b0 [2024-11-28 04:56:05,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:56:05,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:56:05,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:56:05,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:56:05,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:56:05,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec1bb3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05, skipping insertion in model container [2024-11-28 04:56:05,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:56:05,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:56:05,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:56:05,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:56:05,491 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:56:05,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05 WrapperNode [2024-11-28 04:56:05,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:56:05,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:56:05,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:56:05,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:56:05,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,543 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-28 04:56:05,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:56:05,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:56:05,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:56:05,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:56:05,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,588 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:56:05,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,595 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:56:05,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:56:05,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:56:05,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:56:05,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (1/1) ... [2024-11-28 04:56:05,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:56:05,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:05,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:56:05,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:56:05,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:56:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:56:05,710 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:56:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:56:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:56:05,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:56:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:56:05,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:56:05,792 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:56:05,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:56:06,096 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-28 04:56:06,096 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:56:06,110 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:56:06,110 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:56:06,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:06 BoogieIcfgContainer [2024-11-28 04:56:06,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:56:06,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:56:06,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:56:06,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:56:06,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:56:05" (1/3) ... [2024-11-28 04:56:06,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea85c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:56:06, skipping insertion in model container [2024-11-28 04:56:06,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:56:05" (2/3) ... [2024-11-28 04:56:06,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea85c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:56:06, skipping insertion in model container [2024-11-28 04:56:06,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:56:06" (3/3) ... [2024-11-28 04:56:06,124 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound2.c [2024-11-28 04:56:06,145 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:56:06,147 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound2.c that has 3 procedures, 63 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2024-11-28 04:56:06,219 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:56:06,241 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@dab702a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:56:06,241 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-28 04:56:06,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 56 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:56:06,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:56:06,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:06,258 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:06,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:06,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:06,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1569050448, now seen corresponding path program 1 times [2024-11-28 04:56:06,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:06,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880059473] [2024-11-28 04:56:06,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:56:06,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:06,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880059473] [2024-11-28 04:56:06,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880059473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:06,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394843927] [2024-11-28 04:56:06,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:06,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:06,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:06,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:56:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:06,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:56:06,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:56:06,578 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:06,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394843927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:06,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:06,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:56:06,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032590018] [2024-11-28 04:56:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:06,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:56:06,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:06,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:56:06,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:56:06,614 INFO L87 Difference]: Start difference. First operand has 63 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 56 states have internal predecessors, (62), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:06,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:06,641 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2024-11-28 04:56:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:56:06,643 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 04:56:06,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:06,652 INFO L225 Difference]: With dead ends: 122 [2024-11-28 04:56:06,657 INFO L226 Difference]: Without dead ends: 56 [2024-11-28 04:56:06,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:56:06,667 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:06,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:56:06,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-28 04:56:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-28 04:56:06,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:56:06,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-11-28 04:56:06,729 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2024-11-28 04:56:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:06,732 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-11-28 04:56:06,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:56:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-11-28 04:56:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:56:06,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:06,734 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:06,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:06,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:56:06,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:06,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:06,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1177870480, now seen corresponding path program 1 times [2024-11-28 04:56:06,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:06,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615690974] [2024-11-28 04:56:06,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:06,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:56:06,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960942765] [2024-11-28 04:56:06,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:06,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:06,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:07,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:07,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:56:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:07,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:56:07,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:07,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:07,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:07,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:07,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615690974] [2024-11-28 04:56:07,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:07,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960942765] [2024-11-28 04:56:07,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960942765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:07,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:07,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:56:07,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725889003] [2024-11-28 04:56:07,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:07,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:56:07,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:07,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:56:07,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:07,111 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:07,289 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2024-11-28 04:56:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:56:07,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-11-28 04:56:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:07,293 INFO L225 Difference]: With dead ends: 89 [2024-11-28 04:56:07,293 INFO L226 Difference]: Without dead ends: 83 [2024-11-28 04:56:07,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:56:07,294 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:07,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-28 04:56:07,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2024-11-28 04:56:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 68 states have internal predecessors, (82), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:56:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2024-11-28 04:56:07,316 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 14 [2024-11-28 04:56:07,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:07,317 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2024-11-28 04:56:07,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2024-11-28 04:56:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:56:07,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:07,321 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:07,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:07,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:07,522 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:07,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:07,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1937833358, now seen corresponding path program 1 times [2024-11-28 04:56:07,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:07,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326127866] [2024-11-28 04:56:07,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:07,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:07,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:07,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:07,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326127866] [2024-11-28 04:56:07,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326127866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:07,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:07,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:07,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845153185] [2024-11-28 04:56:07,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:07,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:56:07,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:07,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:56:07,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:07,697 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:07,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:07,911 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2024-11-28 04:56:07,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:56:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-28 04:56:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:07,915 INFO L225 Difference]: With dead ends: 117 [2024-11-28 04:56:07,917 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 04:56:07,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:07,919 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 33 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:07,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:56:07,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 04:56:07,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2024-11-28 04:56:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.5897435897435896) internal successors, (124), 97 states have internal predecessors, (124), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:56:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2024-11-28 04:56:07,952 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 16 [2024-11-28 04:56:07,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:07,953 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2024-11-28 04:56:07,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:07,956 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2024-11-28 04:56:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 04:56:07,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:07,957 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:07,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:56:07,958 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:07,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash 56708097, now seen corresponding path program 1 times [2024-11-28 04:56:07,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:07,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280777915] [2024-11-28 04:56:07,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:07,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:08,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:08,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280777915] [2024-11-28 04:56:08,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280777915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:08,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:08,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:08,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003205572] [2024-11-28 04:56:08,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:08,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:56:08,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:08,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:56:08,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:08,070 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:08,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:08,205 INFO L93 Difference]: Finished difference Result 112 states and 137 transitions. [2024-11-28 04:56:08,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:56:08,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-28 04:56:08,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:08,207 INFO L225 Difference]: With dead ends: 112 [2024-11-28 04:56:08,207 INFO L226 Difference]: Without dead ends: 103 [2024-11-28 04:56:08,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:08,208 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:08,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:08,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-28 04:56:08,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2024-11-28 04:56:08,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 92 states have internal predecessors, (114), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:56:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2024-11-28 04:56:08,222 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 17 [2024-11-28 04:56:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:08,222 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2024-11-28 04:56:08,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2024-11-28 04:56:08,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 04:56:08,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:08,223 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:08,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:56:08,223 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:08,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:08,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1757951060, now seen corresponding path program 1 times [2024-11-28 04:56:08,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:08,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640605986] [2024-11-28 04:56:08,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:08,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:08,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:08,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640605986] [2024-11-28 04:56:08,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640605986] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:08,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712511691] [2024-11-28 04:56:08,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:08,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:08,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:08,553 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:08,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:56:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:08,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:56:08,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:08,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:08,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712511691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:08,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:08,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:56:08,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032578960] [2024-11-28 04:56:08,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:08,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:56:08,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:08,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:56:08,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:08,796 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:08,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:08,979 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2024-11-28 04:56:08,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:56:08,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-28 04:56:08,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:08,982 INFO L225 Difference]: With dead ends: 104 [2024-11-28 04:56:08,982 INFO L226 Difference]: Without dead ends: 103 [2024-11-28 04:56:08,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:56:08,983 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 70 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:08,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 62 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:08,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-28 04:56:08,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2024-11-28 04:56:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.547945205479452) internal successors, (113), 92 states have internal predecessors, (113), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:56:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2024-11-28 04:56:08,999 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 18 [2024-11-28 04:56:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:09,000 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2024-11-28 04:56:09,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2024-11-28 04:56:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:56:09,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:09,000 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:09,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:56:09,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:09,205 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:09,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1338091933, now seen corresponding path program 1 times [2024-11-28 04:56:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796219565] [2024-11-28 04:56:09,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:09,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:56:09,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672758908] [2024-11-28 04:56:09,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:09,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:09,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:09,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:09,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:56:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:09,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:56:09,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:09,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:09,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:09,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796219565] [2024-11-28 04:56:09,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:09,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672758908] [2024-11-28 04:56:09,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672758908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:09,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:09,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:09,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902600440] [2024-11-28 04:56:09,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:09,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:56:09,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:09,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:56:09,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:09,441 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:09,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:09,614 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2024-11-28 04:56:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:56:09,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-28 04:56:09,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:09,616 INFO L225 Difference]: With dead ends: 102 [2024-11-28 04:56:09,616 INFO L226 Difference]: Without dead ends: 101 [2024-11-28 04:56:09,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:09,618 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:09,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 67 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:09,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-28 04:56:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-28 04:56:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 92 states have internal predecessors, (112), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:56:09,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2024-11-28 04:56:09,642 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 19 [2024-11-28 04:56:09,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:09,643 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2024-11-28 04:56:09,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:56:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2024-11-28 04:56:09,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 04:56:09,644 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:09,644 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:09,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:09,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:09,848 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:09,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:09,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1759561673, now seen corresponding path program 1 times [2024-11-28 04:56:09,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:09,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322676274] [2024-11-28 04:56:09,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:09,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:10,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:10,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322676274] [2024-11-28 04:56:10,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322676274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:10,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947881563] [2024-11-28 04:56:10,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:10,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:10,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:10,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:10,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:56:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:10,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:56:10,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:10,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:10,212 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:10,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947881563] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:10,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:10,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-28 04:56:10,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362696802] [2024-11-28 04:56:10,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:10,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:56:10,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:10,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:56:10,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:10,387 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:10,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:10,574 INFO L93 Difference]: Finished difference Result 152 states and 189 transitions. [2024-11-28 04:56:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:56:10,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2024-11-28 04:56:10,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:10,577 INFO L225 Difference]: With dead ends: 152 [2024-11-28 04:56:10,578 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 04:56:10,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:56:10,582 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:10,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 236 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 04:56:10,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 140. [2024-11-28 04:56:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 129 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:56:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2024-11-28 04:56:10,599 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 31 [2024-11-28 04:56:10,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:10,599 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2024-11-28 04:56:10,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2024-11-28 04:56:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:56:10,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:10,600 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:10,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:10,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:10,805 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:10,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1288163071, now seen corresponding path program 1 times [2024-11-28 04:56:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827513921] [2024-11-28 04:56:10,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:10,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:10,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:10,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827513921] [2024-11-28 04:56:10,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827513921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:10,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:10,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:10,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331996644] [2024-11-28 04:56:10,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:10,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:56:10,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:10,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:56:10,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:10,867 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:10,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:10,931 INFO L93 Difference]: Finished difference Result 140 states and 184 transitions. [2024-11-28 04:56:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:56:10,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-11-28 04:56:10,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:10,933 INFO L225 Difference]: With dead ends: 140 [2024-11-28 04:56:10,933 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 04:56:10,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:56:10,934 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 56 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:10,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:56:10,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 04:56:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-28 04:56:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 110 states have (on average 1.481818181818182) internal successors, (163), 127 states have internal predecessors, (163), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:56:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2024-11-28 04:56:10,962 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 32 [2024-11-28 04:56:10,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:10,962 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2024-11-28 04:56:10,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2024-11-28 04:56:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 04:56:10,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:10,963 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:10,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:56:10,963 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:10,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:10,964 INFO L85 PathProgramCache]: Analyzing trace with hash 982515032, now seen corresponding path program 1 times [2024-11-28 04:56:10,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:10,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090704292] [2024-11-28 04:56:10,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:10,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:56:10,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065338557] [2024-11-28 04:56:10,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:10,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:10,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:10,995 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:11,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:56:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:11,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:56:11,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:11,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:11,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:11,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090704292] [2024-11-28 04:56:11,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:11,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065338557] [2024-11-28 04:56:11,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065338557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:11,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:11,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:56:11,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183790468] [2024-11-28 04:56:11,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:11,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:56:11,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:11,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:56:11,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:11,617 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:11,832 INFO L93 Difference]: Finished difference Result 145 states and 182 transitions. [2024-11-28 04:56:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:56:11,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-28 04:56:11,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:11,834 INFO L225 Difference]: With dead ends: 145 [2024-11-28 04:56:11,835 INFO L226 Difference]: Without dead ends: 138 [2024-11-28 04:56:11,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:56:11,836 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 52 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:11,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 50 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:56:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-28 04:56:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2024-11-28 04:56:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 123 states have internal predecessors, (151), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:56:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2024-11-28 04:56:11,863 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 33 [2024-11-28 04:56:11,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:11,863 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2024-11-28 04:56:11,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2024-11-28 04:56:11,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 04:56:11,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:11,866 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:11,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:12,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:12,067 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:12,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash 393194967, now seen corresponding path program 1 times [2024-11-28 04:56:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:12,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265618342] [2024-11-28 04:56:12,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:12,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:56:12,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074266845] [2024-11-28 04:56:12,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:12,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:12,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:12,095 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:12,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:56:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:12,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:56:12,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:12,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:12,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:12,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265618342] [2024-11-28 04:56:12,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:12,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074266845] [2024-11-28 04:56:12,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074266845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:12,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:12,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:56:12,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828643622] [2024-11-28 04:56:12,697 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:12,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:56:12,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:12,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:56:12,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:12,698 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:12,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:12,917 INFO L93 Difference]: Finished difference Result 180 states and 223 transitions. [2024-11-28 04:56:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:56:12,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-11-28 04:56:12,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:12,920 INFO L225 Difference]: With dead ends: 180 [2024-11-28 04:56:12,920 INFO L226 Difference]: Without dead ends: 177 [2024-11-28 04:56:12,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:12,921 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 63 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:12,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 103 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:56:12,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-28 04:56:12,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2024-11-28 04:56:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 156 states have internal predecessors, (194), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:56:12,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2024-11-28 04:56:12,943 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 34 [2024-11-28 04:56:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:12,944 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2024-11-28 04:56:12,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2024-11-28 04:56:12,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 04:56:12,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:12,951 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:12,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:13,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:13,152 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:13,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:13,154 INFO L85 PathProgramCache]: Analyzing trace with hash 133303152, now seen corresponding path program 1 times [2024-11-28 04:56:13,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:13,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159015544] [2024-11-28 04:56:13,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:13,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:13,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:13,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159015544] [2024-11-28 04:56:13,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159015544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:13,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207539368] [2024-11-28 04:56:13,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:13,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:13,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:13,270 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:13,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:56:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:13,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:56:13,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:13,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:13,508 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:56:13,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207539368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:13,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:13,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 04:56:13,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733388333] [2024-11-28 04:56:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:13,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:56:13,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:13,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:56:13,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:56:13,510 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:13,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:13,627 INFO L93 Difference]: Finished difference Result 169 states and 214 transitions. [2024-11-28 04:56:13,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:56:13,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-28 04:56:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:13,631 INFO L225 Difference]: With dead ends: 169 [2024-11-28 04:56:13,631 INFO L226 Difference]: Without dead ends: 167 [2024-11-28 04:56:13,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:56:13,633 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:13,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 51 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-28 04:56:13,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2024-11-28 04:56:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 151 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:56:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2024-11-28 04:56:13,651 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 35 [2024-11-28 04:56:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:13,652 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2024-11-28 04:56:13,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2024-11-28 04:56:13,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:56:13,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:13,653 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:13,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:13,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:13,854 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:13,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:13,856 INFO L85 PathProgramCache]: Analyzing trace with hash -162569533, now seen corresponding path program 1 times [2024-11-28 04:56:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:13,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787094716] [2024-11-28 04:56:13,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:13,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:14,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787094716] [2024-11-28 04:56:14,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787094716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497171104] [2024-11-28 04:56:14,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:14,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:14,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:14,202 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:14,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:56:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:14,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:56:14,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:14,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:14,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497171104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:14,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:56:14,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-11-28 04:56:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298625981] [2024-11-28 04:56:14,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:14,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:56:14,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:14,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:56:14,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:14,616 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:56:15,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:15,362 INFO L93 Difference]: Finished difference Result 176 states and 212 transitions. [2024-11-28 04:56:15,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:56:15,363 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 36 [2024-11-28 04:56:15,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:15,365 INFO L225 Difference]: With dead ends: 176 [2024-11-28 04:56:15,365 INFO L226 Difference]: Without dead ends: 161 [2024-11-28 04:56:15,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:56:15,367 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 118 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:15,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 118 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:15,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-28 04:56:15,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2024-11-28 04:56:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.263157894736842) internal successors, (168), 142 states have internal predecessors, (168), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:56:15,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 188 transitions. [2024-11-28 04:56:15,382 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 188 transitions. Word has length 36 [2024-11-28 04:56:15,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:15,383 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 188 transitions. [2024-11-28 04:56:15,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:56:15,383 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 188 transitions. [2024-11-28 04:56:15,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 04:56:15,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:15,387 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:15,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:15,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:15,587 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:15,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:15,588 INFO L85 PathProgramCache]: Analyzing trace with hash -744688174, now seen corresponding path program 1 times [2024-11-28 04:56:15,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:15,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429830492] [2024-11-28 04:56:15,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:15,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:15,667 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:15,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:15,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429830492] [2024-11-28 04:56:15,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429830492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:56:15,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:56:15,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:56:15,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312433878] [2024-11-28 04:56:15,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:15,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:56:15,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:15,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:56:15,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:15,669 INFO L87 Difference]: Start difference. First operand 155 states and 188 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:15,849 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2024-11-28 04:56:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:56:15,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-11-28 04:56:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:15,852 INFO L225 Difference]: With dead ends: 156 [2024-11-28 04:56:15,852 INFO L226 Difference]: Without dead ends: 155 [2024-11-28 04:56:15,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:56:15,853 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:15,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:56:15,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-28 04:56:15,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2024-11-28 04:56:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.2330827067669172) internal successors, (164), 142 states have internal predecessors, (164), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:56:15,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2024-11-28 04:56:15,872 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 37 [2024-11-28 04:56:15,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:15,874 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2024-11-28 04:56:15,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:56:15,874 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2024-11-28 04:56:15,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 04:56:15,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:15,876 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:15,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:56:15,876 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:15,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:15,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1295494428, now seen corresponding path program 1 times [2024-11-28 04:56:15,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:15,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781353178] [2024-11-28 04:56:15,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:15,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:16,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781353178] [2024-11-28 04:56:16,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781353178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794275624] [2024-11-28 04:56:16,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:16,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:16,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:16,155 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:16,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:56:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:16,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:56:16,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:16,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:56:16,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794275624] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:16,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:16,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-28 04:56:16,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902813160] [2024-11-28 04:56:16,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:16,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:56:16,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:16,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:56:16,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:56:16,700 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:56:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:17,235 INFO L93 Difference]: Finished difference Result 156 states and 184 transitions. [2024-11-28 04:56:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:56:17,236 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2024-11-28 04:56:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:17,237 INFO L225 Difference]: With dead ends: 156 [2024-11-28 04:56:17,237 INFO L226 Difference]: Without dead ends: 153 [2024-11-28 04:56:17,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:56:17,239 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 92 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:17,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 138 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:17,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-28 04:56:17,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 131. [2024-11-28 04:56:17,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 119 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:56:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2024-11-28 04:56:17,252 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 37 [2024-11-28 04:56:17,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:17,253 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2024-11-28 04:56:17,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:56:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2024-11-28 04:56:17,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:56:17,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:17,256 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:17,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:56:17,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:56:17,460 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:17,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:17,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1505621659, now seen corresponding path program 1 times [2024-11-28 04:56:17,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:17,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342521774] [2024-11-28 04:56:17,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:17,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:56:17,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555616050] [2024-11-28 04:56:17,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:17,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:17,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:17,475 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:17,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:56:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:17,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:56:17,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:17,706 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:56:17,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:17,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342521774] [2024-11-28 04:56:17,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:17,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555616050] [2024-11-28 04:56:17,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555616050] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:17,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:56:17,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 04:56:17,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034141711] [2024-11-28 04:56:17,876 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:17,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:56:17,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:17,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:56:17,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:56:17,878 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:56:18,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:18,264 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2024-11-28 04:56:18,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:56:18,265 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-28 04:56:18,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:18,266 INFO L225 Difference]: With dead ends: 209 [2024-11-28 04:56:18,266 INFO L226 Difference]: Without dead ends: 145 [2024-11-28 04:56:18,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:56:18,269 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:18,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 81 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:18,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-28 04:56:18,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-28 04:56:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 132 states have internal predecessors, (146), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:56:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 166 transitions. [2024-11-28 04:56:18,287 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 166 transitions. Word has length 38 [2024-11-28 04:56:18,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:18,287 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 166 transitions. [2024-11-28 04:56:18,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:56:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 166 transitions. [2024-11-28 04:56:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 04:56:18,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:18,289 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:18,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:18,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:56:18,493 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:18,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:18,494 INFO L85 PathProgramCache]: Analyzing trace with hash -492530017, now seen corresponding path program 2 times [2024-11-28 04:56:18,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:18,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442842225] [2024-11-28 04:56:18,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:18,513 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:18,513 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:18,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535582087] [2024-11-28 04:56:18,514 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:18,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:18,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:18,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:18,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:56:18,577 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:18,577 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:18,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:56:18,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:56:18,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:56:19,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:19,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442842225] [2024-11-28 04:56:19,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:19,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535582087] [2024-11-28 04:56:19,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535582087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:19,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:56:19,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:56:19,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672992003] [2024-11-28 04:56:19,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:19,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:56:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:19,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:56:19,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:56:19,024 INFO L87 Difference]: Start difference. First operand 145 states and 166 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:19,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:19,501 INFO L93 Difference]: Finished difference Result 295 states and 349 transitions. [2024-11-28 04:56:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:56:19,502 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2024-11-28 04:56:19,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:19,503 INFO L225 Difference]: With dead ends: 295 [2024-11-28 04:56:19,505 INFO L226 Difference]: Without dead ends: 284 [2024-11-28 04:56:19,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:56:19,506 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 163 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:19,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 165 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:19,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-28 04:56:19,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2024-11-28 04:56:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 253 states have (on average 1.1541501976284585) internal successors, (292), 257 states have internal predecessors, (292), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:56:19,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 328 transitions. [2024-11-28 04:56:19,545 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 328 transitions. Word has length 53 [2024-11-28 04:56:19,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:19,545 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 328 transitions. [2024-11-28 04:56:19,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 328 transitions. [2024-11-28 04:56:19,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:56:19,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:19,547 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:19,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:19,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:56:19,752 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:19,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash 609264371, now seen corresponding path program 1 times [2024-11-28 04:56:19,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:19,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593703856] [2024-11-28 04:56:19,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:56:19,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593703856] [2024-11-28 04:56:19,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593703856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807347362] [2024-11-28 04:56:19,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:19,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:19,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:19,850 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:19,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:56:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:19,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:56:19,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:19,985 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:56:19,985 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:56:20,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807347362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:20,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:20,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-28 04:56:20,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642691253] [2024-11-28 04:56:20,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:20,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:56:20,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:20,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:56:20,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:20,102 INFO L87 Difference]: Start difference. First operand 278 states and 328 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:56:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:20,311 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2024-11-28 04:56:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:56:20,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 65 [2024-11-28 04:56:20,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:20,317 INFO L225 Difference]: With dead ends: 768 [2024-11-28 04:56:20,317 INFO L226 Difference]: Without dead ends: 766 [2024-11-28 04:56:20,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:20,318 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:20,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 114 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-28 04:56:20,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2024-11-28 04:56:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 708 states have (on average 1.1257062146892656) internal successors, (797), 711 states have internal predecessors, (797), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:56:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 901 transitions. [2024-11-28 04:56:20,413 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 901 transitions. Word has length 65 [2024-11-28 04:56:20,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:20,414 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 901 transitions. [2024-11-28 04:56:20,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:56:20,414 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 901 transitions. [2024-11-28 04:56:20,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-28 04:56:20,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:20,415 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:20,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:20,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:56:20,616 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:20,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2141835571, now seen corresponding path program 1 times [2024-11-28 04:56:20,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126214304] [2024-11-28 04:56:20,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:20,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:56:20,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:20,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126214304] [2024-11-28 04:56:20,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126214304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:20,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730477519] [2024-11-28 04:56:20,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:20,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:20,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:20,798 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:20,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:56:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:20,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:56:20,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:56:21,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:56:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730477519] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:21,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:21,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-11-28 04:56:21,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291214761] [2024-11-28 04:56:21,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:21,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:56:21,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:21,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:56:21,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:56:21,487 INFO L87 Difference]: Start difference. First operand 766 states and 901 transitions. Second operand has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-28 04:56:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:22,873 INFO L93 Difference]: Finished difference Result 778 states and 913 transitions. [2024-11-28 04:56:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-28 04:56:22,873 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 74 [2024-11-28 04:56:22,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:22,878 INFO L225 Difference]: With dead ends: 778 [2024-11-28 04:56:22,878 INFO L226 Difference]: Without dead ends: 777 [2024-11-28 04:56:22,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 130 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=675, Invalid=2187, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 04:56:22,881 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 168 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:22,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 142 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:22,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-28 04:56:22,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 765. [2024-11-28 04:56:22,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 708 states have (on average 1.0748587570621468) internal successors, (761), 710 states have internal predecessors, (761), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:56:22,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 865 transitions. [2024-11-28 04:56:22,954 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 865 transitions. Word has length 74 [2024-11-28 04:56:22,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:22,954 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 865 transitions. [2024-11-28 04:56:22,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.444444444444445) internal successors, (98), 18 states have internal predecessors, (98), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-28 04:56:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 865 transitions. [2024-11-28 04:56:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:56:22,956 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:22,956 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:22,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:23,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:56:23,157 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:23,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash -564151823, now seen corresponding path program 1 times [2024-11-28 04:56:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27278111] [2024-11-28 04:56:23,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:23,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:56:23,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27278111] [2024-11-28 04:56:23,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27278111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799780417] [2024-11-28 04:56:23,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:23,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:23,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:23,318 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:23,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:56:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:23,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:56:23,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:23,529 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 62 proven. 22 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:56:23,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:23,666 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 50 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:56:23,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799780417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:23,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:23,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-11-28 04:56:23,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990032697] [2024-11-28 04:56:23,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:23,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:56:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:23,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:56:23,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:56:23,671 INFO L87 Difference]: Start difference. First operand 765 states and 865 transitions. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-28 04:56:24,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:24,280 INFO L93 Difference]: Finished difference Result 1422 states and 1606 transitions. [2024-11-28 04:56:24,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:56:24,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 87 [2024-11-28 04:56:24,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:24,288 INFO L225 Difference]: With dead ends: 1422 [2024-11-28 04:56:24,288 INFO L226 Difference]: Without dead ends: 1197 [2024-11-28 04:56:24,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 165 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:56:24,293 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:24,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 187 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-11-28 04:56:24,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 924. [2024-11-28 04:56:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 857 states have (on average 1.072345390898483) internal successors, (919), 859 states have internal predecessors, (919), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 04:56:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1043 transitions. [2024-11-28 04:56:24,399 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1043 transitions. Word has length 87 [2024-11-28 04:56:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:24,399 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1043 transitions. [2024-11-28 04:56:24,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 states have internal predecessors, (124), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-28 04:56:24,400 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1043 transitions. [2024-11-28 04:56:24,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:56:24,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:24,401 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:24,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:56:24,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:24,606 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:24,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:24,607 INFO L85 PathProgramCache]: Analyzing trace with hash -168473925, now seen corresponding path program 1 times [2024-11-28 04:56:24,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:24,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895955957] [2024-11-28 04:56:24,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:24,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:56:24,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:24,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895955957] [2024-11-28 04:56:24,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895955957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:24,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759660145] [2024-11-28 04:56:24,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:24,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:24,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:24,753 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:24,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:56:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:24,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:56:24,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:24,953 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:56:24,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:56:25,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759660145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:25,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:25,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:56:25,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051339052] [2024-11-28 04:56:25,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:25,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:56:25,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:25,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:56:25,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:56:25,104 INFO L87 Difference]: Start difference. First operand 924 states and 1043 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:56:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:25,391 INFO L93 Difference]: Finished difference Result 1494 states and 1690 transitions. [2024-11-28 04:56:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:56:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 87 [2024-11-28 04:56:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:25,398 INFO L225 Difference]: With dead ends: 1494 [2024-11-28 04:56:25,398 INFO L226 Difference]: Without dead ends: 1493 [2024-11-28 04:56:25,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:56:25,400 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 74 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:25,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 185 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:56:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-11-28 04:56:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1485. [2024-11-28 04:56:25,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1380 states have (on average 1.0710144927536231) internal successors, (1478), 1382 states have internal predecessors, (1478), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 04:56:25,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1678 transitions. [2024-11-28 04:56:25,542 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1678 transitions. Word has length 87 [2024-11-28 04:56:25,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:25,543 INFO L471 AbstractCegarLoop]: Abstraction has 1485 states and 1678 transitions. [2024-11-28 04:56:25,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:56:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1678 transitions. [2024-11-28 04:56:25,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:56:25,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:25,545 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:25,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:56:25,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:25,746 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:25,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1643264205, now seen corresponding path program 1 times [2024-11-28 04:56:25,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:25,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256902942] [2024-11-28 04:56:25,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:25,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 40 proven. 96 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:56:25,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:25,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256902942] [2024-11-28 04:56:25,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256902942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:25,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660360125] [2024-11-28 04:56:25,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:25,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:25,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:25,972 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:25,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:56:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:26,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:56:26,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:56:26,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:56:26,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660360125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:26,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:26,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-28 04:56:26,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043865397] [2024-11-28 04:56:26,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:26,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:56:26,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:26,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:56:26,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:56:26,502 INFO L87 Difference]: Start difference. First operand 1485 states and 1678 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:56:27,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:27,103 INFO L93 Difference]: Finished difference Result 3278 states and 3701 transitions. [2024-11-28 04:56:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:56:27,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 110 [2024-11-28 04:56:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:27,139 INFO L225 Difference]: With dead ends: 3278 [2024-11-28 04:56:27,139 INFO L226 Difference]: Without dead ends: 2431 [2024-11-28 04:56:27,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 211 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:56:27,142 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 29 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:27,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 300 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:27,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2024-11-28 04:56:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 1763. [2024-11-28 04:56:27,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1640 states have (on average 1.0634146341463415) internal successors, (1744), 1642 states have internal predecessors, (1744), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-11-28 04:56:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 1980 transitions. [2024-11-28 04:56:27,445 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 1980 transitions. Word has length 110 [2024-11-28 04:56:27,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:27,446 INFO L471 AbstractCegarLoop]: Abstraction has 1763 states and 1980 transitions. [2024-11-28 04:56:27,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:56:27,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 1980 transitions. [2024-11-28 04:56:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:56:27,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:27,453 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:27,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:56:27,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:27,658 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:27,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1133439135, now seen corresponding path program 2 times [2024-11-28 04:56:27,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:27,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251482754] [2024-11-28 04:56:27,659 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:27,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:27,711 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:27,711 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:27,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478803142] [2024-11-28 04:56:27,712 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:27,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:27,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:27,715 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:27,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:56:27,804 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:27,804 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:27,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:56:27,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-11-28 04:56:28,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:32,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251482754] [2024-11-28 04:56:32,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:32,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478803142] [2024-11-28 04:56:32,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478803142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:32,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:32,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:56:32,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013781712] [2024-11-28 04:56:32,774 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:32,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:56:32,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:32,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:56:32,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:56:32,776 INFO L87 Difference]: Start difference. First operand 1763 states and 1980 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:33,203 INFO L93 Difference]: Finished difference Result 1976 states and 2215 transitions. [2024-11-28 04:56:33,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:56:33,204 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 129 [2024-11-28 04:56:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:33,215 INFO L225 Difference]: With dead ends: 1976 [2024-11-28 04:56:33,215 INFO L226 Difference]: Without dead ends: 1975 [2024-11-28 04:56:33,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:56:33,219 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:33,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 193 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-28 04:56:33,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1793. [2024-11-28 04:56:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1668 states have (on average 1.0623501199040768) internal successors, (1772), 1670 states have internal predecessors, (1772), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-28 04:56:33,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2012 transitions. [2024-11-28 04:56:33,383 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2012 transitions. Word has length 129 [2024-11-28 04:56:33,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:33,384 INFO L471 AbstractCegarLoop]: Abstraction has 1793 states and 2012 transitions. [2024-11-28 04:56:33,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:33,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2012 transitions. [2024-11-28 04:56:33,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:56:33,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:33,387 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:33,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:56:33,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:56:33,588 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:33,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:33,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1942082239, now seen corresponding path program 3 times [2024-11-28 04:56:33,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:33,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19899997] [2024-11-28 04:56:33,588 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:33,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:33,648 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:56:33,648 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:33,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559975532] [2024-11-28 04:56:33,652 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:33,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:33,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:33,656 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:33,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:56:33,751 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:56:33,751 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:33,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:56:33,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-28 04:56:34,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:34,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:34,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19899997] [2024-11-28 04:56:34,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:34,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559975532] [2024-11-28 04:56:34,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559975532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:34,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:34,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:56:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257551675] [2024-11-28 04:56:34,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:34,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:56:34,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:34,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:56:34,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:56:34,365 INFO L87 Difference]: Start difference. First operand 1793 states and 2012 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:35,118 INFO L93 Difference]: Finished difference Result 2776 states and 3111 transitions. [2024-11-28 04:56:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:56:35,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 129 [2024-11-28 04:56:35,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:35,127 INFO L225 Difference]: With dead ends: 2776 [2024-11-28 04:56:35,128 INFO L226 Difference]: Without dead ends: 1965 [2024-11-28 04:56:35,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:56:35,134 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 73 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:35,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 182 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-28 04:56:35,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1793. [2024-11-28 04:56:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1793 states, 1668 states have (on average 1.0605515587529977) internal successors, (1769), 1670 states have internal predecessors, (1769), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-28 04:56:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1793 states to 1793 states and 2009 transitions. [2024-11-28 04:56:35,320 INFO L78 Accepts]: Start accepts. Automaton has 1793 states and 2009 transitions. Word has length 129 [2024-11-28 04:56:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:35,321 INFO L471 AbstractCegarLoop]: Abstraction has 1793 states and 2009 transitions. [2024-11-28 04:56:35,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:56:35,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1793 states and 2009 transitions. [2024-11-28 04:56:35,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:56:35,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:35,324 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:35,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 04:56:35,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:56:35,529 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:35,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:35,529 INFO L85 PathProgramCache]: Analyzing trace with hash 257171615, now seen corresponding path program 3 times [2024-11-28 04:56:35,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:35,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531740374] [2024-11-28 04:56:35,530 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:35,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:35,568 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:56:35,568 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:35,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908794987] [2024-11-28 04:56:35,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:35,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:35,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:35,573 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:35,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:56:35,639 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:56:35,639 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:35,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:56:35,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:35,712 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-28 04:56:35,713 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:35,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:35,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531740374] [2024-11-28 04:56:35,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:35,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908794987] [2024-11-28 04:56:35,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908794987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:35,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:35,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:56:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144284538] [2024-11-28 04:56:35,991 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:35,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:56:35,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:35,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:56:35,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:56:35,992 INFO L87 Difference]: Start difference. First operand 1793 states and 2009 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:56:36,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:36,252 INFO L93 Difference]: Finished difference Result 2329 states and 2608 transitions. [2024-11-28 04:56:36,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:56:36,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 129 [2024-11-28 04:56:36,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:36,260 INFO L225 Difference]: With dead ends: 2329 [2024-11-28 04:56:36,260 INFO L226 Difference]: Without dead ends: 1425 [2024-11-28 04:56:36,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:56:36,264 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:36,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 93 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:56:36,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-11-28 04:56:36,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1424. [2024-11-28 04:56:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1323 states have (on average 1.055177626606198) internal successors, (1396), 1325 states have internal predecessors, (1396), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-28 04:56:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1588 transitions. [2024-11-28 04:56:36,448 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1588 transitions. Word has length 129 [2024-11-28 04:56:36,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:36,449 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 1588 transitions. [2024-11-28 04:56:36,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:56:36,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1588 transitions. [2024-11-28 04:56:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 04:56:36,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:36,452 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:36,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:56:36,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 04:56:36,655 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:36,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:36,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1775991923, now seen corresponding path program 2 times [2024-11-28 04:56:36,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:36,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049808728] [2024-11-28 04:56:36,656 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:36,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:36,686 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:36,686 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:56:36,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:36,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049808728] [2024-11-28 04:56:36,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049808728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:36,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620171918] [2024-11-28 04:56:36,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:36,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:36,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:36,937 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:36,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:56:37,014 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:37,015 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:37,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:56:37,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:37,240 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:56:37,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:56:37,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620171918] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:37,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:37,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-28 04:56:37,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202288367] [2024-11-28 04:56:37,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:37,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:56:37,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:37,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:56:37,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:56:37,641 INFO L87 Difference]: Start difference. First operand 1424 states and 1588 transitions. Second operand has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:56:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:38,190 INFO L93 Difference]: Finished difference Result 2625 states and 3028 transitions. [2024-11-28 04:56:38,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:56:38,191 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 141 [2024-11-28 04:56:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:38,201 INFO L225 Difference]: With dead ends: 2625 [2024-11-28 04:56:38,202 INFO L226 Difference]: Without dead ends: 2624 [2024-11-28 04:56:38,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:56:38,204 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 17 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:38,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 145 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:38,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2024-11-28 04:56:38,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2624. [2024-11-28 04:56:38,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2443 states have (on average 1.0626279164961114) internal successors, (2596), 2445 states have internal predecessors, (2596), 176 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-11-28 04:56:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 2948 transitions. [2024-11-28 04:56:38,471 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 2948 transitions. Word has length 141 [2024-11-28 04:56:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:38,472 INFO L471 AbstractCegarLoop]: Abstraction has 2624 states and 2948 transitions. [2024-11-28 04:56:38,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:56:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 2948 transitions. [2024-11-28 04:56:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 04:56:38,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:38,476 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:38,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:56:38,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:38,677 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:38,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:38,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1539875681, now seen corresponding path program 4 times [2024-11-28 04:56:38,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:38,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673860585] [2024-11-28 04:56:38,678 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:56:38,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:38,709 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:56:38,710 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 59 proven. 230 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:56:39,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:39,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673860585] [2024-11-28 04:56:39,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673860585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:39,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021029789] [2024-11-28 04:56:39,056 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:56:39,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:39,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:39,058 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:39,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:56:39,127 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:56:39,127 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:39,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:56:39,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:56:39,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:39,723 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:56:39,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021029789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:39,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:39,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-11-28 04:56:39,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145840323] [2024-11-28 04:56:39,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:39,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:56:39,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:39,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:56:39,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:56:39,727 INFO L87 Difference]: Start difference. First operand 2624 states and 2948 transitions. Second operand has 15 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 04:56:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:40,559 INFO L93 Difference]: Finished difference Result 5773 states and 6498 transitions. [2024-11-28 04:56:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:56:40,560 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 148 [2024-11-28 04:56:40,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:40,573 INFO L225 Difference]: With dead ends: 5773 [2024-11-28 04:56:40,573 INFO L226 Difference]: Without dead ends: 4196 [2024-11-28 04:56:40,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 284 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:56:40,578 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 31 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:40,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 295 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4196 states. [2024-11-28 04:56:40,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4196 to 2941. [2024-11-28 04:56:40,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2941 states, 2739 states have (on average 1.0580503833515882) internal successors, (2898), 2741 states have internal predecessors, (2898), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2024-11-28 04:56:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 3292 transitions. [2024-11-28 04:56:40,865 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 3292 transitions. Word has length 148 [2024-11-28 04:56:40,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:40,866 INFO L471 AbstractCegarLoop]: Abstraction has 2941 states and 3292 transitions. [2024-11-28 04:56:40,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 04:56:40,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 3292 transitions. [2024-11-28 04:56:40,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:56:40,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:40,869 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:40,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:56:41,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:41,070 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:41,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:41,070 INFO L85 PathProgramCache]: Analyzing trace with hash -900977269, now seen corresponding path program 5 times [2024-11-28 04:56:41,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:41,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879675993] [2024-11-28 04:56:41,071 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:56:41,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:41,143 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 04:56:41,143 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:41,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574707655] [2024-11-28 04:56:41,145 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:56:41,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:41,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:41,149 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:41,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:56:41,262 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 04:56:41,262 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:41,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 04:56:41,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 15 proven. 394 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:56:42,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:42,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:42,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879675993] [2024-11-28 04:56:42,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574707655] [2024-11-28 04:56:42,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574707655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:42,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:42,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-28 04:56:42,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141516387] [2024-11-28 04:56:42,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:42,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:56:42,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:42,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:56:42,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:56:42,867 INFO L87 Difference]: Start difference. First operand 2941 states and 3292 transitions. Second operand has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 states have internal predecessors, (126), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:56:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:44,460 INFO L93 Difference]: Finished difference Result 4969 states and 5567 transitions. [2024-11-28 04:56:44,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:56:44,461 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 states have internal predecessors, (126), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 167 [2024-11-28 04:56:44,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:44,473 INFO L225 Difference]: With dead ends: 4969 [2024-11-28 04:56:44,473 INFO L226 Difference]: Without dead ends: 3228 [2024-11-28 04:56:44,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:56:44,478 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 45 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:44,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 437 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:56:44,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2024-11-28 04:56:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3001. [2024-11-28 04:56:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2795 states have (on average 1.0568872987477638) internal successors, (2954), 2797 states have internal predecessors, (2954), 201 states have call successors, (201), 2 states have call predecessors, (201), 2 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-11-28 04:56:44,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 3356 transitions. [2024-11-28 04:56:44,773 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 3356 transitions. Word has length 167 [2024-11-28 04:56:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:44,774 INFO L471 AbstractCegarLoop]: Abstraction has 3001 states and 3356 transitions. [2024-11-28 04:56:44,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.3) internal successors, (126), 21 states have internal predecessors, (126), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:56:44,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 3356 transitions. [2024-11-28 04:56:44,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-28 04:56:44,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:44,778 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:44,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:44,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:56:44,979 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:44,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:44,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1097013897, now seen corresponding path program 6 times [2024-11-28 04:56:44,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:44,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967763339] [2024-11-28 04:56:44,980 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:56:44,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:45,048 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-28 04:56:45,048 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:45,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009113133] [2024-11-28 04:56:45,050 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:56:45,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:45,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:45,054 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:45,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:56:45,153 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-11-28 04:56:45,153 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:45,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:56:45,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:45,820 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-28 04:56:45,820 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:46,359 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-28 04:56:46,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:46,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967763339] [2024-11-28 04:56:46,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:46,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009113133] [2024-11-28 04:56:46,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009113133] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:46,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:56:46,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-28 04:56:46,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767459498] [2024-11-28 04:56:46,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:46,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:56:46,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:46,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:56:46,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:56:46,362 INFO L87 Difference]: Start difference. First operand 3001 states and 3356 transitions. Second operand has 16 states, 15 states have (on average 12.266666666666667) internal successors, (184), 16 states have internal predecessors, (184), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 04:56:47,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:47,830 INFO L93 Difference]: Finished difference Result 5041 states and 5646 transitions. [2024-11-28 04:56:47,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 04:56:47,830 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 12.266666666666667) internal successors, (184), 16 states have internal predecessors, (184), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 167 [2024-11-28 04:56:47,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:47,843 INFO L225 Difference]: With dead ends: 5041 [2024-11-28 04:56:47,844 INFO L226 Difference]: Without dead ends: 5040 [2024-11-28 04:56:47,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:56:47,846 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 204 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:47,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 521 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:56:47,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2024-11-28 04:56:48,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 5034. [2024-11-28 04:56:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5034 states, 4693 states have (on average 1.0551885787342852) internal successors, (4952), 4695 states have internal predecessors, (4952), 336 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (336), 336 states have call predecessors, (336), 336 states have call successors, (336) [2024-11-28 04:56:48,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5034 states to 5034 states and 5624 transitions. [2024-11-28 04:56:48,281 INFO L78 Accepts]: Start accepts. Automaton has 5034 states and 5624 transitions. Word has length 167 [2024-11-28 04:56:48,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:48,282 INFO L471 AbstractCegarLoop]: Abstraction has 5034 states and 5624 transitions. [2024-11-28 04:56:48,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 12.266666666666667) internal successors, (184), 16 states have internal predecessors, (184), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 04:56:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5034 states and 5624 transitions. [2024-11-28 04:56:48,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:56:48,286 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:48,286 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:48,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:48,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:56:48,487 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:48,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash -932248333, now seen corresponding path program 2 times [2024-11-28 04:56:48,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:48,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610750852] [2024-11-28 04:56:48,487 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:48,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:48,520 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:48,520 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:56:48,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:48,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610750852] [2024-11-28 04:56:48,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610750852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:48,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464309801] [2024-11-28 04:56:48,800 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:48,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:48,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:48,802 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:48,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:56:48,888 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:48,888 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:48,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:56:48,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:56:49,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:56:49,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464309801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:49,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:49,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-28 04:56:49,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405888483] [2024-11-28 04:56:49,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:49,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:56:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:49,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:56:49,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:56:49,582 INFO L87 Difference]: Start difference. First operand 5034 states and 5624 transitions. Second operand has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:56:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:50,489 INFO L93 Difference]: Finished difference Result 8159 states and 9144 transitions. [2024-11-28 04:56:50,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:56:50,489 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 182 [2024-11-28 04:56:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:50,510 INFO L225 Difference]: With dead ends: 8159 [2024-11-28 04:56:50,510 INFO L226 Difference]: Without dead ends: 8158 [2024-11-28 04:56:50,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:56:50,512 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 290 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:50,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 317 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:56:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2024-11-28 04:56:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 8140. [2024-11-28 04:56:51,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8140 states, 7591 states have (on average 1.0557238835463048) internal successors, (8014), 7593 states have internal predecessors, (8014), 544 states have call successors, (544), 2 states have call predecessors, (544), 2 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2024-11-28 04:56:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8140 states to 8140 states and 9102 transitions. [2024-11-28 04:56:51,177 INFO L78 Accepts]: Start accepts. Automaton has 8140 states and 9102 transitions. Word has length 182 [2024-11-28 04:56:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:51,179 INFO L471 AbstractCegarLoop]: Abstraction has 8140 states and 9102 transitions. [2024-11-28 04:56:51,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:56:51,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8140 states and 9102 transitions. [2024-11-28 04:56:51,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-28 04:56:51,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:51,185 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:51,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:56:51,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:56:51,389 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:51,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash -165296435, now seen corresponding path program 7 times [2024-11-28 04:56:51,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:51,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725467919] [2024-11-28 04:56:51,390 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:56:51,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 119 proven. 383 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:56:51,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:51,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725467919] [2024-11-28 04:56:51,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725467919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:51,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855391118] [2024-11-28 04:56:51,752 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:56:51,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:51,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:51,755 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:51,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:56:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:51,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:56:51,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:56:52,304 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:56:52,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855391118] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:56:52,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:56:52,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-11-28 04:56:52,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573458824] [2024-11-28 04:56:52,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:52,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:56:52,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:52,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:56:52,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:56:52,667 INFO L87 Difference]: Start difference. First operand 8140 states and 9102 transitions. Second operand has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:56:53,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:53,794 INFO L93 Difference]: Finished difference Result 18027 states and 20204 transitions. [2024-11-28 04:56:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:56:53,794 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 186 [2024-11-28 04:56:53,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:53,834 INFO L225 Difference]: With dead ends: 18027 [2024-11-28 04:56:53,835 INFO L226 Difference]: Without dead ends: 13078 [2024-11-28 04:56:53,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:56:53,842 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:53,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 454 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:53,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13078 states. [2024-11-28 04:56:54,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13078 to 9468. [2024-11-28 04:56:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9468 states, 8831 states have (on average 1.0492582946438682) internal successors, (9266), 8833 states have internal predecessors, (9266), 632 states have call successors, (632), 2 states have call predecessors, (632), 2 states have return successors, (632), 632 states have call predecessors, (632), 632 states have call successors, (632) [2024-11-28 04:56:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9468 states to 9468 states and 10530 transitions. [2024-11-28 04:56:54,877 INFO L78 Accepts]: Start accepts. Automaton has 9468 states and 10530 transitions. Word has length 186 [2024-11-28 04:56:54,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:54,877 INFO L471 AbstractCegarLoop]: Abstraction has 9468 states and 10530 transitions. [2024-11-28 04:56:54,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:56:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9468 states and 10530 transitions. [2024-11-28 04:56:54,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 04:56:54,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:54,881 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:54,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:56:55,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:55,087 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:55,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1453024609, now seen corresponding path program 8 times [2024-11-28 04:56:55,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:55,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587398758] [2024-11-28 04:56:55,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:55,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:55,127 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:55,127 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:56:55,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061784400] [2024-11-28 04:56:55,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:56:55,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:55,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:55,132 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:55,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:56:55,219 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:56:55,219 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:55,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:56:55,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 04:56:55,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:56,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:56,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587398758] [2024-11-28 04:56:56,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:56:56,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061784400] [2024-11-28 04:56:56,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061784400] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:56,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:56,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:56:56,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972669149] [2024-11-28 04:56:56,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:56:56,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:56:56,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:56:56,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:56:56,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:56:56,035 INFO L87 Difference]: Start difference. First operand 9468 states and 10530 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:56:56,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:56,880 INFO L93 Difference]: Finished difference Result 9921 states and 11033 transitions. [2024-11-28 04:56:56,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:56:56,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 205 [2024-11-28 04:56:56,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:56,909 INFO L225 Difference]: With dead ends: 9921 [2024-11-28 04:56:56,909 INFO L226 Difference]: Without dead ends: 9920 [2024-11-28 04:56:56,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:56:56,913 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:56,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 346 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:56:56,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9920 states. [2024-11-28 04:56:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9920 to 9698. [2024-11-28 04:56:57,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9698 states, 9046 states have (on average 1.0493035595843467) internal successors, (9492), 9048 states have internal predecessors, (9492), 647 states have call successors, (647), 2 states have call predecessors, (647), 2 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) [2024-11-28 04:56:57,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9698 states to 9698 states and 10786 transitions. [2024-11-28 04:56:57,720 INFO L78 Accepts]: Start accepts. Automaton has 9698 states and 10786 transitions. Word has length 205 [2024-11-28 04:56:57,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:57,721 INFO L471 AbstractCegarLoop]: Abstraction has 9698 states and 10786 transitions. [2024-11-28 04:56:57,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:56:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 9698 states and 10786 transitions. [2024-11-28 04:56:57,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-28 04:56:57,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:57,725 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:57,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:56:57,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 04:56:57,930 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:56:57,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:57,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1870450079, now seen corresponding path program 9 times [2024-11-28 04:56:57,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:56:57,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648416332] [2024-11-28 04:56:57,931 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:56:57,976 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 04:56:57,976 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 164 proven. 665 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-28 04:56:58,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:56:58,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648416332] [2024-11-28 04:56:58,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648416332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:58,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938866627] [2024-11-28 04:56:58,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:56:58,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:56:58,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:56:58,817 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:56:58,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:56:58,909 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:56:58,909 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:56:58,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:56:58,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2024-11-28 04:56:59,648 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:00,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938866627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:00,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:57:00,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 27 [2024-11-28 04:57:00,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920796129] [2024-11-28 04:57:00,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:00,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:57:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:00,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:57:00,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:57:00,012 INFO L87 Difference]: Start difference. First operand 9698 states and 10786 transitions. Second operand has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:57:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:05,853 INFO L93 Difference]: Finished difference Result 20267 states and 22604 transitions. [2024-11-28 04:57:05,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-28 04:57:05,853 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 224 [2024-11-28 04:57:05,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:05,893 INFO L225 Difference]: With dead ends: 20267 [2024-11-28 04:57:05,893 INFO L226 Difference]: Without dead ends: 15163 [2024-11-28 04:57:05,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3982 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1156, Invalid=11726, Unknown=0, NotChecked=0, Total=12882 [2024-11-28 04:57:05,906 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 425 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 4634 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 4675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 4634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:05,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 555 Invalid, 4675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 4634 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:57:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15163 states. [2024-11-28 04:57:06,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15163 to 11521. [2024-11-28 04:57:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11521 states, 10748 states have (on average 1.0421473762560476) internal successors, (11201), 10750 states have internal predecessors, (11201), 768 states have call successors, (768), 2 states have call predecessors, (768), 2 states have return successors, (768), 768 states have call predecessors, (768), 768 states have call successors, (768) [2024-11-28 04:57:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11521 states to 11521 states and 12737 transitions. [2024-11-28 04:57:06,999 INFO L78 Accepts]: Start accepts. Automaton has 11521 states and 12737 transitions. Word has length 224 [2024-11-28 04:57:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:06,999 INFO L471 AbstractCegarLoop]: Abstraction has 11521 states and 12737 transitions. [2024-11-28 04:57:07,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 9.62962962962963) internal successors, (260), 27 states have internal predecessors, (260), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:57:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 11521 states and 12737 transitions. [2024-11-28 04:57:07,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-28 04:57:07,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:07,004 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:07,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 04:57:07,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:07,209 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:07,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1041317515, now seen corresponding path program 10 times [2024-11-28 04:57:07,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:07,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595530978] [2024-11-28 04:57:07,210 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:57:07,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:07,254 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:57:07,254 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:57:07,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922563621] [2024-11-28 04:57:07,256 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:57:07,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:07,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:07,259 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:07,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:57:07,388 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:57:07,389 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:07,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:57:07,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 39 proven. 942 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-28 04:57:08,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:08,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:08,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595530978] [2024-11-28 04:57:08,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:57:08,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922563621] [2024-11-28 04:57:08,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922563621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:08,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:08,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-28 04:57:08,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118533896] [2024-11-28 04:57:08,770 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:08,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:57:08,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:08,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:57:08,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:57:08,771 INFO L87 Difference]: Start difference. First operand 11521 states and 12737 transitions. Second operand has 23 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 23 states have internal predecessors, (171), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:57:10,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:10,957 INFO L93 Difference]: Finished difference Result 11974 states and 13238 transitions. [2024-11-28 04:57:10,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:57:10,957 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 23 states have internal predecessors, (171), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 243 [2024-11-28 04:57:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:10,981 INFO L225 Difference]: With dead ends: 11974 [2024-11-28 04:57:10,981 INFO L226 Difference]: Without dead ends: 11973 [2024-11-28 04:57:10,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=153, Invalid=1107, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:57:10,986 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 42 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:10,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 561 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:57:10,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11973 states. [2024-11-28 04:57:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11973 to 11751. [2024-11-28 04:57:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11751 states, 10963 states have (on average 1.0422329654291709) internal successors, (11426), 10965 states have internal predecessors, (11426), 783 states have call successors, (783), 2 states have call predecessors, (783), 2 states have return successors, (783), 783 states have call predecessors, (783), 783 states have call successors, (783) [2024-11-28 04:57:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11751 states to 11751 states and 12992 transitions. [2024-11-28 04:57:11,995 INFO L78 Accepts]: Start accepts. Automaton has 11751 states and 12992 transitions. Word has length 243 [2024-11-28 04:57:11,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:11,995 INFO L471 AbstractCegarLoop]: Abstraction has 11751 states and 12992 transitions. [2024-11-28 04:57:11,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.7727272727272725) internal successors, (171), 23 states have internal predecessors, (171), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:57:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 11751 states and 12992 transitions. [2024-11-28 04:57:11,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-28 04:57:11,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:12,000 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:12,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:57:12,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-28 04:57:12,200 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:12,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:12,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1019087667, now seen corresponding path program 11 times [2024-11-28 04:57:12,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:12,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688111163] [2024-11-28 04:57:12,201 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:57:12,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:12,250 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-28 04:57:12,250 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 334 proven. 774 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:57:12,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688111163] [2024-11-28 04:57:12,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688111163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891297239] [2024-11-28 04:57:12,831 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:57:12,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:12,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:12,834 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:12,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:57:12,967 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-28 04:57:12,967 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:12,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:57:12,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:13,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:57:13,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:57:13,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891297239] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:13,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:57:13,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 23 [2024-11-28 04:57:13,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88374018] [2024-11-28 04:57:13,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:13,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:57:13,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:13,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:57:13,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:57:13,956 INFO L87 Difference]: Start difference. First operand 11751 states and 12992 transitions. Second operand has 23 states, 23 states have (on average 12.652173913043478) internal successors, (291), 23 states have internal predecessors, (291), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-28 04:57:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:15,564 INFO L93 Difference]: Finished difference Result 22092 states and 24512 transitions. [2024-11-28 04:57:15,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:57:15,565 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.652173913043478) internal successors, (291), 23 states have internal predecessors, (291), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 262 [2024-11-28 04:57:15,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:15,591 INFO L225 Difference]: With dead ends: 22092 [2024-11-28 04:57:15,591 INFO L226 Difference]: Without dead ends: 17143 [2024-11-28 04:57:15,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 504 SyntacticMatches, 13 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:57:15,602 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 29 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:15,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 586 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:57:15,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17143 states. [2024-11-28 04:57:16,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17143 to 13925. [2024-11-28 04:57:16,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13925 states, 12993 states have (on average 1.0368660047718001) internal successors, (13472), 12995 states have internal predecessors, (13472), 927 states have call successors, (927), 2 states have call predecessors, (927), 2 states have return successors, (927), 927 states have call predecessors, (927), 927 states have call successors, (927) [2024-11-28 04:57:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13925 states to 13925 states and 15326 transitions. [2024-11-28 04:57:16,589 INFO L78 Accepts]: Start accepts. Automaton has 13925 states and 15326 transitions. Word has length 262 [2024-11-28 04:57:16,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:16,590 INFO L471 AbstractCegarLoop]: Abstraction has 13925 states and 15326 transitions. [2024-11-28 04:57:16,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.652173913043478) internal successors, (291), 23 states have internal predecessors, (291), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-28 04:57:16,590 INFO L276 IsEmpty]: Start isEmpty. Operand 13925 states and 15326 transitions. [2024-11-28 04:57:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-28 04:57:16,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:16,597 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:16,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:57:16,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:16,802 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:16,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:16,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1129163935, now seen corresponding path program 12 times [2024-11-28 04:57:16,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:16,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837371567] [2024-11-28 04:57:16,803 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:57:16,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:16,865 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-11-28 04:57:16,865 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:57:16,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323932979] [2024-11-28 04:57:16,868 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:57:16,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:16,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:16,871 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:16,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:57:17,142 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-28 04:57:17,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:17,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:57:17,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 1006 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2024-11-28 04:57:19,027 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:19,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837371567] [2024-11-28 04:57:19,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:57:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323932979] [2024-11-28 04:57:19,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323932979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:19,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:19,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 04:57:19,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960000626] [2024-11-28 04:57:19,241 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:19,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:57:19,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:19,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:57:19,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:57:19,242 INFO L87 Difference]: Start difference. First operand 13925 states and 15326 transitions. Second operand has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 18 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:57:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:20,993 INFO L93 Difference]: Finished difference Result 14378 states and 15825 transitions. [2024-11-28 04:57:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:57:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 18 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 281 [2024-11-28 04:57:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:21,024 INFO L225 Difference]: With dead ends: 14378 [2024-11-28 04:57:21,025 INFO L226 Difference]: Without dead ends: 14377 [2024-11-28 04:57:21,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:57:21,032 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 19 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:21,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 522 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:57:21,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14377 states. [2024-11-28 04:57:22,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14377 to 14015. [2024-11-28 04:57:22,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14015 states, 13077 states have (on average 1.0366291962988452) internal successors, (13556), 13079 states have internal predecessors, (13556), 933 states have call successors, (933), 2 states have call predecessors, (933), 2 states have return successors, (933), 933 states have call predecessors, (933), 933 states have call successors, (933) [2024-11-28 04:57:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14015 states to 14015 states and 15422 transitions. [2024-11-28 04:57:22,093 INFO L78 Accepts]: Start accepts. Automaton has 14015 states and 15422 transitions. Word has length 281 [2024-11-28 04:57:22,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:22,094 INFO L471 AbstractCegarLoop]: Abstraction has 14015 states and 15422 transitions. [2024-11-28 04:57:22,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.529411764705882) internal successors, (128), 18 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:57:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand 14015 states and 15422 transitions. [2024-11-28 04:57:22,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-28 04:57:22,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:22,100 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:22,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:57:22,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 04:57:22,305 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:22,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:22,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2101448845, now seen corresponding path program 3 times [2024-11-28 04:57:22,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:22,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735525430] [2024-11-28 04:57:22,306 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:22,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:22,385 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-28 04:57:22,388 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:22,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:57:22,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:22,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735525430] [2024-11-28 04:57:22,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735525430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:22,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522875271] [2024-11-28 04:57:22,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:22,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:22,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:22,935 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:22,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:57:23,058 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-28 04:57:23,058 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:23,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:57:23,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:57:23,380 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:24,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:57:24,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522875271] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:24,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:57:24,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2024-11-28 04:57:24,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456846127] [2024-11-28 04:57:24,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:24,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 04:57:24,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:24,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 04:57:24,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:57:24,182 INFO L87 Difference]: Start difference. First operand 14015 states and 15422 transitions. Second operand has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-11-28 04:57:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:25,972 INFO L93 Difference]: Finished difference Result 21216 states and 24046 transitions. [2024-11-28 04:57:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:57:25,973 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) Word has length 293 [2024-11-28 04:57:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:26,010 INFO L225 Difference]: With dead ends: 21216 [2024-11-28 04:57:26,010 INFO L226 Difference]: Without dead ends: 21215 [2024-11-28 04:57:26,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:57:26,018 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:26,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 220 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:57:26,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21215 states. [2024-11-28 04:57:27,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21215 to 21215. [2024-11-28 04:57:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21215 states, 19797 states have (on average 1.0476334798201747) internal successors, (20740), 19799 states have internal predecessors, (20740), 1413 states have call successors, (1413), 2 states have call predecessors, (1413), 2 states have return successors, (1413), 1413 states have call predecessors, (1413), 1413 states have call successors, (1413) [2024-11-28 04:57:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21215 states to 21215 states and 23566 transitions. [2024-11-28 04:57:27,504 INFO L78 Accepts]: Start accepts. Automaton has 21215 states and 23566 transitions. Word has length 293 [2024-11-28 04:57:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:27,504 INFO L471 AbstractCegarLoop]: Abstraction has 21215 states and 23566 transitions. [2024-11-28 04:57:27,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2024-11-28 04:57:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 21215 states and 23566 transitions. [2024-11-28 04:57:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 04:57:27,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:27,509 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:27,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:57:27,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 04:57:27,710 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:27,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:27,710 INFO L85 PathProgramCache]: Analyzing trace with hash -427450015, now seen corresponding path program 13 times [2024-11-28 04:57:27,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:27,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017881777] [2024-11-28 04:57:27,710 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:57:27,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 350 proven. 1151 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:57:28,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:28,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017881777] [2024-11-28 04:57:28,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017881777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:28,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141285981] [2024-11-28 04:57:28,290 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:57:28,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:28,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:28,292 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:28,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:57:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:28,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:57:28,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:28,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 426 proven. 1075 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:57:28,978 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 426 proven. 1075 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:57:29,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141285981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:57:29,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:57:29,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 27 [2024-11-28 04:57:29,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017014457] [2024-11-28 04:57:29,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:29,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:57:29,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:29,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:57:29,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:57:29,442 INFO L87 Difference]: Start difference. First operand 21215 states and 23566 transitions. Second operand has 27 states, 27 states have (on average 12.814814814814815) internal successors, (346), 27 states have internal predecessors, (346), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-28 04:57:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:32,878 INFO L93 Difference]: Finished difference Result 42596 states and 47552 transitions. [2024-11-28 04:57:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:57:32,879 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 12.814814814814815) internal successors, (346), 27 states have internal predecessors, (346), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) Word has length 300 [2024-11-28 04:57:32,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:32,920 INFO L225 Difference]: With dead ends: 42596 [2024-11-28 04:57:32,920 INFO L226 Difference]: Without dead ends: 32367 [2024-11-28 04:57:32,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 576 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:57:32,937 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 27 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:32,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 792 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:57:32,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32367 states. [2024-11-28 04:57:35,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32367 to 23749. [2024-11-28 04:57:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23749 states, 22163 states have (on average 1.0432703153905156) internal successors, (23122), 22165 states have internal predecessors, (23122), 1581 states have call successors, (1581), 2 states have call predecessors, (1581), 2 states have return successors, (1581), 1581 states have call predecessors, (1581), 1581 states have call successors, (1581) [2024-11-28 04:57:35,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23749 states to 23749 states and 26284 transitions. [2024-11-28 04:57:35,091 INFO L78 Accepts]: Start accepts. Automaton has 23749 states and 26284 transitions. Word has length 300 [2024-11-28 04:57:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:35,091 INFO L471 AbstractCegarLoop]: Abstraction has 23749 states and 26284 transitions. [2024-11-28 04:57:35,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 12.814814814814815) internal successors, (346), 27 states have internal predecessors, (346), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-28 04:57:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 23749 states and 26284 transitions. [2024-11-28 04:57:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 04:57:35,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:35,099 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:35,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:57:35,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:57:35,299 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:35,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:35,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1620540247, now seen corresponding path program 14 times [2024-11-28 04:57:35,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:35,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565751242] [2024-11-28 04:57:35,300 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:35,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:35,342 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:35,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:57:35,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551275930] [2024-11-28 04:57:35,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:57:35,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:35,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:35,347 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:35,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:57:35,482 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:57:35,483 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:35,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:57:35,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1885 backedges. 0 proven. 1193 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2024-11-28 04:57:36,345 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:36,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:36,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565751242] [2024-11-28 04:57:36,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:57:36,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551275930] [2024-11-28 04:57:36,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551275930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:36,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:36,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:57:36,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702468944] [2024-11-28 04:57:36,497 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:36,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:57:36,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:36,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:57:36,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:57:36,498 INFO L87 Difference]: Start difference. First operand 23749 states and 26284 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:57:39,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:39,175 INFO L93 Difference]: Finished difference Result 24536 states and 27147 transitions. [2024-11-28 04:57:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:57:39,176 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 300 [2024-11-28 04:57:39,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:39,210 INFO L225 Difference]: With dead ends: 24536 [2024-11-28 04:57:39,210 INFO L226 Difference]: Without dead ends: 24535 [2024-11-28 04:57:39,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:57:39,217 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 20 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:39,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 358 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:57:39,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24535 states. [2024-11-28 04:57:41,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24535 to 23749. [2024-11-28 04:57:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23749 states, 22163 states have (on average 1.0432251951450615) internal successors, (23121), 22165 states have internal predecessors, (23121), 1581 states have call successors, (1581), 2 states have call predecessors, (1581), 2 states have return successors, (1581), 1581 states have call predecessors, (1581), 1581 states have call successors, (1581) [2024-11-28 04:57:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23749 states to 23749 states and 26283 transitions. [2024-11-28 04:57:41,139 INFO L78 Accepts]: Start accepts. Automaton has 23749 states and 26283 transitions. Word has length 300 [2024-11-28 04:57:41,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:41,140 INFO L471 AbstractCegarLoop]: Abstraction has 23749 states and 26283 transitions. [2024-11-28 04:57:41,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:57:41,140 INFO L276 IsEmpty]: Start isEmpty. Operand 23749 states and 26283 transitions. [2024-11-28 04:57:41,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-28 04:57:41,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:41,145 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:41,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:57:41,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:57:41,346 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:41,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:41,346 INFO L85 PathProgramCache]: Analyzing trace with hash 604185367, now seen corresponding path program 15 times [2024-11-28 04:57:41,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:41,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257564500] [2024-11-28 04:57:41,346 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:41,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:41,400 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-28 04:57:41,400 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:57:41,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698410171] [2024-11-28 04:57:41,402 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:57:41,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:41,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:41,412 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:41,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:57:41,518 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-28 04:57:41,518 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:41,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:57:41,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 504 proven. 45 refuted. 0 times theorem prover too weak. 1280 trivial. 0 not checked. [2024-11-28 04:57:41,790 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:42,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257564500] [2024-11-28 04:57:42,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:57:42,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698410171] [2024-11-28 04:57:42,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698410171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:42,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:42,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:57:42,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372430820] [2024-11-28 04:57:42,025 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:42,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:57:42,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:42,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:57:42,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:57:42,027 INFO L87 Difference]: Start difference. First operand 23749 states and 26283 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:57:44,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:44,051 INFO L93 Difference]: Finished difference Result 41173 states and 45570 transitions. [2024-11-28 04:57:44,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:57:44,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 300 [2024-11-28 04:57:44,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:44,098 INFO L225 Difference]: With dead ends: 41173 [2024-11-28 04:57:44,099 INFO L226 Difference]: Without dead ends: 22167 [2024-11-28 04:57:44,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:57:44,128 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 47 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:44,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 231 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:57:44,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22167 states. [2024-11-28 04:57:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22167 to 21942. [2024-11-28 04:57:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21942 states, 20476 states have (on average 1.043416682945888) internal successors, (21365), 20478 states have internal predecessors, (21365), 1461 states have call successors, (1461), 2 states have call predecessors, (1461), 2 states have return successors, (1461), 1461 states have call predecessors, (1461), 1461 states have call successors, (1461) [2024-11-28 04:57:45,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21942 states to 21942 states and 24287 transitions. [2024-11-28 04:57:45,876 INFO L78 Accepts]: Start accepts. Automaton has 21942 states and 24287 transitions. Word has length 300 [2024-11-28 04:57:45,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:45,877 INFO L471 AbstractCegarLoop]: Abstraction has 21942 states and 24287 transitions. [2024-11-28 04:57:45,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 04:57:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 21942 states and 24287 transitions. [2024-11-28 04:57:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-28 04:57:45,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:45,882 INFO L218 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:45,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 04:57:46,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:57:46,083 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:57:46,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:46,083 INFO L85 PathProgramCache]: Analyzing trace with hash 12742539, now seen corresponding path program 16 times [2024-11-28 04:57:46,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:57:46,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019845131] [2024-11-28 04:57:46,084 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:57:46,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:57:46,136 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:57:46,137 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:57:46,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704278098] [2024-11-28 04:57:46,139 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:57:46,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:57:46,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:57:46,142 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:57:46,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:57:46,306 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:57:46,306 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:57:46,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 93 conjuncts are in the unsatisfiable core [2024-11-28 04:57:46,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:49,107 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-11-28 04:57:49,702 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-11-28 04:57:50,594 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-28 04:57:50,623 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-28 04:57:53,713 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-11-28 04:57:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2204 backedges. 379 proven. 1488 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-28 04:57:53,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:54,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:57:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019845131] [2024-11-28 04:57:54,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:57:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704278098] [2024-11-28 04:57:54,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704278098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:54,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:54,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2024-11-28 04:57:54,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111772708] [2024-11-28 04:57:54,080 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:57:54,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-28 04:57:54,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:57:54,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-28 04:57:54,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2613, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:57:54,082 INFO L87 Difference]: Start difference. First operand 21942 states and 24287 transitions. Second operand has 52 states, 50 states have (on average 4.82) internal successors, (241), 47 states have internal predecessors, (241), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:58:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:02,469 INFO L93 Difference]: Finished difference Result 22877 states and 25330 transitions. [2024-11-28 04:58:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-28 04:58:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 4.82) internal successors, (241), 47 states have internal predecessors, (241), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Word has length 319 [2024-11-28 04:58:02,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:02,502 INFO L225 Difference]: With dead ends: 22877 [2024-11-28 04:58:02,502 INFO L226 Difference]: Without dead ends: 22876 [2024-11-28 04:58:02,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1662 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=816, Invalid=5664, Unknown=0, NotChecked=0, Total=6480 [2024-11-28 04:58:02,510 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 125 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 6744 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 6760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 6744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:02,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 783 Invalid, 6760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 6744 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 04:58:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22876 states. [2024-11-28 04:58:04,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22876 to 22047. [2024-11-28 04:58:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22047 states, 20574 states have (on average 1.0432098765432098) internal successors, (21463), 20576 states have internal predecessors, (21463), 1468 states have call successors, (1468), 2 states have call predecessors, (1468), 2 states have return successors, (1468), 1468 states have call predecessors, (1468), 1468 states have call successors, (1468) [2024-11-28 04:58:04,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22047 states to 22047 states and 24399 transitions. [2024-11-28 04:58:04,148 INFO L78 Accepts]: Start accepts. Automaton has 22047 states and 24399 transitions. Word has length 319 [2024-11-28 04:58:04,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:04,148 INFO L471 AbstractCegarLoop]: Abstraction has 22047 states and 24399 transitions. [2024-11-28 04:58:04,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 4.82) internal successors, (241), 47 states have internal predecessors, (241), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:58:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 22047 states and 24399 transitions. [2024-11-28 04:58:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-28 04:58:04,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:04,154 INFO L218 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:04,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-28 04:58:04,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:58:04,358 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:58:04,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:04,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1054948659, now seen corresponding path program 17 times [2024-11-28 04:58:04,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:04,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931268011] [2024-11-28 04:58:04,360 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:58:04,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:04,428 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-28 04:58:04,428 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:05,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2502 backedges. 559 proven. 1395 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:58:05,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:05,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931268011] [2024-11-28 04:58:05,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931268011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:05,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508655410] [2024-11-28 04:58:05,162 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:58:05,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:05,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:05,165 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:05,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:58:05,338 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-28 04:58:05,339 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:05,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:58:05,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2502 backedges. 546 proven. 1408 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:58:06,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:07,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2502 backedges. 546 proven. 1408 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:58:07,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508655410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:58:07,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:58:07,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 29 [2024-11-28 04:58:07,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092972068] [2024-11-28 04:58:07,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:07,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:58:07,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:07,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:58:07,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:58:07,035 INFO L87 Difference]: Start difference. First operand 22047 states and 24399 transitions. Second operand has 29 states, 29 states have (on average 12.931034482758621) internal successors, (375), 29 states have internal predecessors, (375), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-28 04:58:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:10,429 INFO L93 Difference]: Finished difference Result 42500 states and 47301 transitions. [2024-11-28 04:58:10,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:58:10,430 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 12.931034482758621) internal successors, (375), 29 states have internal predecessors, (375), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) Word has length 338 [2024-11-28 04:58:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:10,471 INFO L225 Difference]: With dead ends: 42500 [2024-11-28 04:58:10,471 INFO L226 Difference]: Without dead ends: 32735 [2024-11-28 04:58:10,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 650 SyntacticMatches, 17 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=333, Invalid=999, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:58:10,480 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 26 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:10,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 681 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:58:10,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32735 states. [2024-11-28 04:58:12,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32735 to 24821. [2024-11-28 04:58:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24821 states, 23164 states have (on average 1.0390692453807633) internal successors, (24069), 23166 states have internal predecessors, (24069), 1652 states have call successors, (1652), 2 states have call predecessors, (1652), 2 states have return successors, (1652), 1652 states have call predecessors, (1652), 1652 states have call successors, (1652) [2024-11-28 04:58:12,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24821 states to 24821 states and 27373 transitions. [2024-11-28 04:58:12,769 INFO L78 Accepts]: Start accepts. Automaton has 24821 states and 27373 transitions. Word has length 338 [2024-11-28 04:58:12,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:12,769 INFO L471 AbstractCegarLoop]: Abstraction has 24821 states and 27373 transitions. [2024-11-28 04:58:12,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 12.931034482758621) internal successors, (375), 29 states have internal predecessors, (375), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-28 04:58:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 24821 states and 27373 transitions. [2024-11-28 04:58:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-28 04:58:12,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:12,775 INFO L218 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:12,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:58:12,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:12,976 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:58:12,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:12,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1703797089, now seen corresponding path program 18 times [2024-11-28 04:58:12,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:12,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241994525] [2024-11-28 04:58:12,977 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:58:12,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:13,035 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-28 04:58:13,035 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:58:13,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585628388] [2024-11-28 04:58:13,037 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:58:13,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:13,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:13,041 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:13,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:58:13,339 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2024-11-28 04:58:13,339 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:13,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-28 04:58:13,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:16,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2819 backedges. 27 proven. 1775 refuted. 0 times theorem prover too weak. 1017 trivial. 0 not checked. [2024-11-28 04:58:16,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:16,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:16,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241994525] [2024-11-28 04:58:16,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:58:16,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585628388] [2024-11-28 04:58:16,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585628388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:16,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:58:16,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2024-11-28 04:58:16,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128331770] [2024-11-28 04:58:16,600 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:16,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 04:58:16,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:16,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 04:58:16,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1167, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:58:16,601 INFO L87 Difference]: Start difference. First operand 24821 states and 27373 transitions. Second operand has 34 states, 33 states have (on average 5.0) internal successors, (165), 34 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:58:20,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:20,522 INFO L93 Difference]: Finished difference Result 25754 states and 28412 transitions. [2024-11-28 04:58:20,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 04:58:20,523 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.0) internal successors, (165), 34 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) Word has length 357 [2024-11-28 04:58:20,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:20,571 INFO L225 Difference]: With dead ends: 25754 [2024-11-28 04:58:20,571 INFO L226 Difference]: Without dead ends: 25753 [2024-11-28 04:58:20,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:58:20,577 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 25 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 4372 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 4373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:20,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 627 Invalid, 4373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4372 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:58:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25753 states. [2024-11-28 04:58:22,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25753 to 24941. [2024-11-28 04:58:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24941 states, 23276 states have (on average 1.0388812510740677) internal successors, (24181), 23278 states have internal predecessors, (24181), 1660 states have call successors, (1660), 2 states have call predecessors, (1660), 2 states have return successors, (1660), 1660 states have call predecessors, (1660), 1660 states have call successors, (1660) [2024-11-28 04:58:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24941 states to 24941 states and 27501 transitions. [2024-11-28 04:58:22,719 INFO L78 Accepts]: Start accepts. Automaton has 24941 states and 27501 transitions. Word has length 357 [2024-11-28 04:58:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:22,719 INFO L471 AbstractCegarLoop]: Abstraction has 24941 states and 27501 transitions. [2024-11-28 04:58:22,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.0) internal successors, (165), 34 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:58:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 24941 states and 27501 transitions. [2024-11-28 04:58:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-28 04:58:22,726 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:22,726 INFO L218 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:22,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:58:22,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:22,927 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:58:22,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash -886315327, now seen corresponding path program 19 times [2024-11-28 04:58:22,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:22,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504281446] [2024-11-28 04:58:22,928 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:58:22,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:58:22,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91903182] [2024-11-28 04:58:22,984 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:58:22,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:22,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:22,987 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:22,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:58:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:23,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-11-28 04:58:23,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2767 backedges. 81 proven. 2166 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-11-28 04:58:25,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:26,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:26,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504281446] [2024-11-28 04:58:26,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:58:26,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91903182] [2024-11-28 04:58:26,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91903182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:26,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:58:26,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2024-11-28 04:58:26,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240981198] [2024-11-28 04:58:26,176 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:26,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-28 04:58:26,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:26,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-28 04:58:26,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2032, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:58:26,178 INFO L87 Difference]: Start difference. First operand 24941 states and 27501 transitions. Second operand has 44 states, 43 states have (on average 6.186046511627907) internal successors, (266), 44 states have internal predecessors, (266), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-28 04:58:34,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:34,244 INFO L93 Difference]: Finished difference Result 37441 states and 41356 transitions. [2024-11-28 04:58:34,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 04:58:34,245 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.186046511627907) internal successors, (266), 44 states have internal predecessors, (266), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 357 [2024-11-28 04:58:34,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:34,283 INFO L225 Difference]: With dead ends: 37441 [2024-11-28 04:58:34,283 INFO L226 Difference]: Without dead ends: 25341 [2024-11-28 04:58:34,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=308, Invalid=4662, Unknown=0, NotChecked=0, Total=4970 [2024-11-28 04:58:34,297 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 154 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 10883 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 10904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 10883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:34,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1389 Invalid, 10904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 10883 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 04:58:34,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25341 states. [2024-11-28 04:58:36,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25341 to 24941. [2024-11-28 04:58:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24941 states, 23276 states have (on average 1.0387523629489603) internal successors, (24178), 23278 states have internal predecessors, (24178), 1660 states have call successors, (1660), 2 states have call predecessors, (1660), 2 states have return successors, (1660), 1660 states have call predecessors, (1660), 1660 states have call successors, (1660) [2024-11-28 04:58:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24941 states to 24941 states and 27498 transitions. [2024-11-28 04:58:36,067 INFO L78 Accepts]: Start accepts. Automaton has 24941 states and 27498 transitions. Word has length 357 [2024-11-28 04:58:36,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:36,068 INFO L471 AbstractCegarLoop]: Abstraction has 24941 states and 27498 transitions. [2024-11-28 04:58:36,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.186046511627907) internal successors, (266), 44 states have internal predecessors, (266), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2024-11-28 04:58:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 24941 states and 27498 transitions. [2024-11-28 04:58:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-11-28 04:58:36,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:36,076 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:36,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:58:36,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:36,276 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:58:36,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:36,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1340828659, now seen corresponding path program 3 times [2024-11-28 04:58:36,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:36,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067758509] [2024-11-28 04:58:36,277 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:58:36,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:36,346 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:58:36,346 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 2529 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:58:37,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:37,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067758509] [2024-11-28 04:58:37,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067758509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040697337] [2024-11-28 04:58:37,072 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:58:37,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:37,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:37,074 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:37,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:58:37,326 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:58:37,327 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:37,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:58:37,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 2529 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:58:37,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 0 proven. 2529 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:58:38,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040697337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:58:38,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:58:38,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-28 04:58:38,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145618533] [2024-11-28 04:58:38,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:38,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 04:58:38,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:38,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 04:58:38,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:58:38,796 INFO L87 Difference]: Start difference. First operand 24941 states and 27498 transitions. Second operand has 41 states, 40 states have (on average 13.775) internal successors, (551), 41 states have internal predecessors, (551), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:58:42,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:42,692 INFO L93 Difference]: Finished difference Result 44160 states and 48838 transitions. [2024-11-28 04:58:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:58:42,693 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 13.775) internal successors, (551), 41 states have internal predecessors, (551), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 372 [2024-11-28 04:58:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:42,741 INFO L225 Difference]: With dead ends: 44160 [2024-11-28 04:58:42,741 INFO L226 Difference]: Without dead ends: 44159 [2024-11-28 04:58:42,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 762 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:58:42,748 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 616 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:42,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 545 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:58:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44159 states. [2024-11-28 04:58:45,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44159 to 44121. [2024-11-28 04:58:45,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44121 states, 41176 states have (on average 1.0393918787643288) internal successors, (42798), 41178 states have internal predecessors, (42798), 2940 states have call successors, (2940), 2 states have call predecessors, (2940), 2 states have return successors, (2940), 2940 states have call predecessors, (2940), 2940 states have call successors, (2940) [2024-11-28 04:58:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44121 states to 44121 states and 48678 transitions. [2024-11-28 04:58:45,373 INFO L78 Accepts]: Start accepts. Automaton has 44121 states and 48678 transitions. Word has length 372 [2024-11-28 04:58:45,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:45,373 INFO L471 AbstractCegarLoop]: Abstraction has 44121 states and 48678 transitions. [2024-11-28 04:58:45,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 13.775) internal successors, (551), 41 states have internal predecessors, (551), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:58:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 44121 states and 48678 transitions. [2024-11-28 04:58:45,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-28 04:58:45,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:45,380 INFO L218 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:45,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-28 04:58:45,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:45,581 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:58:45,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:45,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1480061025, now seen corresponding path program 20 times [2024-11-28 04:58:45,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:45,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147208668] [2024-11-28 04:58:45,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:58:45,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:45,612 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:58:45,612 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 579 proven. 1888 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:58:46,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:46,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147208668] [2024-11-28 04:58:46,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147208668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:46,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258255539] [2024-11-28 04:58:46,355 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:58:46,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:46,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:46,357 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:46,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:58:46,458 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:58:46,458 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:46,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:58:46,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:47,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 681 proven. 1786 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:58:47,328 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 681 proven. 1786 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:58:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258255539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:58:47,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:58:47,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 33 [2024-11-28 04:58:47,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085396433] [2024-11-28 04:58:47,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:47,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 04:58:47,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:47,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 04:58:47,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:58:47,897 INFO L87 Difference]: Start difference. First operand 44121 states and 48678 transitions. Second operand has 33 states, 33 states have (on average 13.030303030303031) internal successors, (430), 33 states have internal predecessors, (430), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-28 04:58:52,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:52,754 INFO L93 Difference]: Finished difference Result 83134 states and 92296 transitions. [2024-11-28 04:58:52,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:58:52,755 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 13.030303030303031) internal successors, (430), 33 states have internal predecessors, (430), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 376 [2024-11-28 04:58:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:52,835 INFO L225 Difference]: With dead ends: 83134 [2024-11-28 04:58:52,835 INFO L226 Difference]: Without dead ends: 64089 [2024-11-28 04:58:52,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 722 SyntacticMatches, 19 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=409, Invalid=1313, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:58:52,860 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 25 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:52,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 973 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:58:52,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64089 states. [2024-11-28 04:58:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64089 to 49940. [2024-11-28 04:58:56,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49940 states, 46608 states have (on average 1.0355732921386887) internal successors, (48266), 46610 states have internal predecessors, (48266), 3327 states have call successors, (3327), 2 states have call predecessors, (3327), 2 states have return successors, (3327), 3327 states have call predecessors, (3327), 3327 states have call successors, (3327) [2024-11-28 04:58:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49940 states to 49940 states and 54920 transitions. [2024-11-28 04:58:57,028 INFO L78 Accepts]: Start accepts. Automaton has 49940 states and 54920 transitions. Word has length 376 [2024-11-28 04:58:57,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:57,029 INFO L471 AbstractCegarLoop]: Abstraction has 49940 states and 54920 transitions. [2024-11-28 04:58:57,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 13.030303030303031) internal successors, (430), 33 states have internal predecessors, (430), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-28 04:58:57,029 INFO L276 IsEmpty]: Start isEmpty. Operand 49940 states and 54920 transitions. [2024-11-28 04:58:57,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-28 04:58:57,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:57,036 INFO L218 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:57,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 04:58:57,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:58:57,236 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:58:57,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:57,237 INFO L85 PathProgramCache]: Analyzing trace with hash -285753205, now seen corresponding path program 21 times [2024-11-28 04:58:57,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:58:57,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057935574] [2024-11-28 04:58:57,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:58:57,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:58:57,286 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2024-11-28 04:58:57,286 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:58:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20994482] [2024-11-28 04:58:57,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:58:57,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:58:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:58:57,293 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:58:57,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:58:57,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 04:58:57,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:58:57,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:58:57,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3510 backedges. 0 proven. 2107 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2024-11-28 04:58:58,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:58,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:58:58,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057935574] [2024-11-28 04:58:58,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:58:58,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20994482] [2024-11-28 04:58:58,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20994482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:58,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:58:58,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:58:58,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074561054] [2024-11-28 04:58:58,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:58:58,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:58:58,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:58:58,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:58:58,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:58:58,608 INFO L87 Difference]: Start difference. First operand 49940 states and 54920 transitions. Second operand has 15 states, 14 states have (on average 12.142857142857142) internal successors, (170), 15 states have internal predecessors, (170), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:59:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:03,138 INFO L93 Difference]: Finished difference Result 68055 states and 75135 transitions. [2024-11-28 04:59:03,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 04:59:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.142857142857142) internal successors, (170), 15 states have internal predecessors, (170), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 395 [2024-11-28 04:59:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:03,209 INFO L225 Difference]: With dead ends: 68055 [2024-11-28 04:59:03,209 INFO L226 Difference]: Without dead ends: 50564 [2024-11-28 04:59:03,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=1296, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:59:03,232 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 249 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:03,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1136 Invalid, 2984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:59:03,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50564 states. [2024-11-28 04:59:06,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50564 to 50090. [2024-11-28 04:59:06,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50090 states, 46748 states have (on average 1.0354667579361685) internal successors, (48406), 46750 states have internal predecessors, (48406), 3337 states have call successors, (3337), 2 states have call predecessors, (3337), 2 states have return successors, (3337), 3337 states have call predecessors, (3337), 3337 states have call successors, (3337) [2024-11-28 04:59:06,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50090 states to 50090 states and 55080 transitions. [2024-11-28 04:59:06,135 INFO L78 Accepts]: Start accepts. Automaton has 50090 states and 55080 transitions. Word has length 395 [2024-11-28 04:59:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:06,136 INFO L471 AbstractCegarLoop]: Abstraction has 50090 states and 55080 transitions. [2024-11-28 04:59:06,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.142857142857142) internal successors, (170), 15 states have internal predecessors, (170), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:59:06,136 INFO L276 IsEmpty]: Start isEmpty. Operand 50090 states and 55080 transitions. [2024-11-28 04:59:06,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-28 04:59:06,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:06,142 INFO L218 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 16, 16, 16, 16, 16, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:06,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:06,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:59:06,343 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-28 04:59:06,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:06,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1085258849, now seen corresponding path program 22 times [2024-11-28 04:59:06,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:59:06,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274464265] [2024-11-28 04:59:06,344 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:59:06,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:59:06,401 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:59:06,401 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:59:06,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628962958] [2024-11-28 04:59:06,404 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:59:06,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:06,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:06,407 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:06,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0309d86c-1150-4029-bb24-1277b68a7547/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:59:06,630 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:59:06,630 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:59:06,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-28 04:59:06,640 INFO L279 TraceCheckSpWp]: Computing forward predicates...